Ball bearing inner bushing with a standard F2x or F3x (1, 2, 3 or 4 series) support arm.
Replaces BMW part numbers: 31126852991 31126852992
Ready to mount, complete wishbone set (2 pieces). Replace your standard wishbones for this set with more feedback. With these arms your geometry does not change, like with the M3 wishbones, but you do get a ball bearing at this position just like the M3.
Basically, we would align after mounting, but probably not necessarily necessary.
We recommend replacing the trailing arm bushing for a urethane bushing in combination with this set.